Hugh III, Count of Montlhéry, was a nobleman in medieval France, known for his role in the feudal system during the 12th century. He belonged to the House of Montlhéry, a prominent family that held significant lands and influence in the Île-de-France region. His tenure as count was marked by various conflicts and alliances with neighboring lords. Hugh III was the son of Hugh II, Count of Montlhéry, and he continued the family's legacy of power. He was involved in the political dynamics of the time, including interactions with the Capetian dynasty, which played a crucial role in shaping the future of France. His lineage contributed to the complex tapestry of medieval nobility.